Machine for making paper shells.



PATENTED JUNE 39, 1908 J. UHBSNEY. MACHINE FOR MAKING PAPER SHBLL8.

APPLIOA'UON rum) 00125, 1007.

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APPLICATION FILED 001226, 1907.

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UNITED sTAtrn's PATENT ornrron.

JOHN I'IICSXEY, Oi PAULSBORO, NEW JERSEY, ASSIONOR TO Tlllfi l). I. DU FONT DE NlGMOUR-S POWDER. UOMPAN Y, Ol WILMINGTON, DELAWARE, A CORPORATION OF l\EW JERSEY.

MACHINE FOR MAKING PAPER SHELLS.

Specification of Letters Patent.

Patented June 30, 1908.

I Original application filed December 11, 1906, Serial No. 347,380. Divided and this application filed October 25, 1907. v Serial No. 899,107.

To all whom it may concern:

Be it known that 1, JOHN CnEsNEY, zen of the United States, residing at Paulsboro, county of Gloucester, and State of New Jersey, have invented a new and useful Improvement in L'laohines for Makin Paper Shells, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

The invention relates to that class of machines for making paper shells for holding explosives in which the paper sheets are fed to a rotating mandrel and wrapped thereon to lorin a tube, the end of which is folded and closed and which is then slipped oil the mandrel.

The object of the invcnt'on is to provide means, coi'ipcrating with tnc'mcans for conveying the sheets to the mandrel, for printing each sheet of paper before it is led to the mandrel. v Y

This application is a division of an application lilcd by me December 1lth, 1906, Serial No. 347,380, in which the construction and operation of the whole machine are set forth. .In the present application, only the parts of the nmchine embodying my invention and 'theparts immediately cooperating therewith are illustrated and described.

in the drawings: Figure l is a plan view ol' the machine. Fig. 2 is a side elevation of a part ol' the machine embodying my invention. Fig. I? is a front elevation with certain parts omiilcd lo more clearly show the remaining parts. Fig. -l is an enlarged detail scclional view of the pneumatic picker. lfig. 5 is an enlarged detail sectional view of the stamp. Figs. 6 and 7 are detail sectional views ol the pressure and exhaust \alvcs rcspcclively.

f is the .iop plate ol' the machine l'ramc,

a citipicking up the paper sheets and feeding them to the mandrel. The picker and feeder 40, shown in detail in Fig. 4, comprises the hollow head 41, connected to and supported by the LXllaust pipe. 50, the hollow shank 42 depending from the head 41, and the mouthpiece 43 surrounding and sliding on the shank 42. The exhaust pipe extends through and is supported by an arm 45 on the slide 46, and connnunicatcs with the exhaust chamber 13. The slide 46 is movable back and forth on side-plate 100 as a guide.

Secured to the slide 46 is a bar 47 whose rear end is attached to a lever 48 pivoted on a bracket 338 on the top plate 0. A spring 51, secured to the bracket 33 and bearing against the lever 18, normally holds the slide -16 in its backward position against a stop 52 sccuredto the side plate 100. A cam 4-9, on the main driving-shalt 11, moves the lever 4S forward against the tension of the spring 51 and moves the slide 46 toward the mandrel.

110 is the driving pulley for the main shaft.

interposed in the pipe 50 is a valve 54, (see Fig. 7) normally held, by the spring 55, against its seat to close communication between the exhaust chamber 13 and ihe picker and 'l'ecder ll); but the stem 56 ol the valve is operated at the proper time by a cam 5.) on the main driving shaft I]. When lhc valve 54 is thus operated, ihoair is sucked inwardly through the shank 42, the mouth piece 433 sliding upwardly on the shank and lifting the top sheet above the pile below it. The suction being maintained, the picker and 'l'ceder is moved 'l'orwardly toward the mandrel by the described action of camel). This brings the front edge ol the sheet over and against the upper face ol the rotating mandrel 20. The cam 50 then passes beyond the valvestcm 5e, and the valve closes, shutting oll' communication between the exhaust cylinder 1-; and the picker and l'ceder 40, and relcasing the sheet ted to the mandrel. The cam ll) subsequently passes beyond the lever 48, which is moved backwardly by means of the spring 51, returning the picker and leader 40 to its original position.

A holder 47, consisting of a plate secured to the mouth-piece 43, and extending forwardly on a level with the lower edge of the mouthpiece, continues to engage the forward end of the pile when the picker and feeder is moved to its furtherest position back, and prevents the mouth-piece of the picker and feeder from catching in the top sheet or sheets of the paper as it moves forwardly.

The mandrel is detachably secured to a hollow shaft 21 turningin bearings in standards 22. 'After the sheet is earned-forward to the mandrel and released from the icker as before described, means are provi ed to hold the sheet againstthe mandrel, to rotate the mandrel-shaft, to'fold in and head the end of the tube thus formed and to eject the finished tube; but this mechanism is not here- 111 shown or described, as it forms'no part of the invention herein claimed.

The table 10 is supported on the to of an upright screw-shaft 15, whose flange upper end fits rotatably within a cap 102 on the under side of the table. Means, not herein shown oi described, are rovided to cause the feed shaft to be turned and moved a very slight distance upwardly after the recession of, the picker and feeder 40, the extentof upward movement of the screw-shaft just equaling the thickness of a piece of paper, whereby the top of the pile is maintained on a constant level.

To print each sheet'of pa er before it is fed to the mandrel, the f0 owing device, (shown in detail in'Fi 5) is provided. 17 is a stamp-block on a p unger-rod 170 extending wit in a cylinder 171 172 is the plunger head fitting within the cylinder. 173 is a s ring tending to hold the plunger and stampb ock raised. The cylinder 171 is secured to and communicates with a i e 174 connected with the ressure cylinder 1 The pipe 17 4 extends t rough a bracket 175, which is secured to the side-plate 100 by means of a set screw extending throu h one of the several orifices 105 in the si e-plate. Passage of pressure fluid through the ipe 174 is controlled by a valve 860 (sim ar to valve 54) whose stem 88 is operated, against the pressure of s ring 87, by a cam 179 on the main shaft. en air is admitted, throu h the pipe 174. to'the cylinder 171, it forcest e face of the stamp-block 17 against the surface of the top sheet and prints thereon. To ink the printing face of the stamp block, I provide a roller-pad lgjournaledin the lower ends of levers 180 pivoted on an arm 181 on the cylinder 171. Springs 182, connecting the 013 1- inder and the levers, tend to hold the r0 under the stamp-block, but when the lunger-rod 170 is depressed, the roller 18, eing held from downward movement, swings outwardly, and clears the stamp-block. When seaeea the plunger is retracted, the springs 182 return the roller to its normal position. Projecting from the cylinder 171 arearms 176 I 193 1s a holder at the side of the paper, the

same consisting of an angle plate secured to the table and extending up along side, and also overhangin the ile.

Having now f ully. escribed my invention, what I claim and desire to protect by Letters Patent is: I

1. In a machine for makin paper shells, the combination with the tab e for holding the pile of paper, and means to convey sheets of pagpr from the table, of a stamriing block over t e pile, a plunger secured to t e stamp ing block, acylmder into which said plunger.

extends, a pressure; cylinder, 9. pi connecting the ressure cyhnder and p unger the driving s aft, means actuated by the driving shaft to operate said c'onveymg means, a.

valve in saidpi e, and means actu'ated the driving sha force said block against the, pile while theto actuate said valve. and

ing meansis inoperat ve. 5

a-machine for makin' paper shells, the combination with the tab e'for holding the pile of paper, of means to convey sheets conve above the table, a plunger secured to the stamping block, a cylinder .into which said means are inoperative, an inking roller be? neath the stamping block, and means pivotof paper from. the table, a stamping block means actuated by the driving shaft to sc- 1 tuate, said valve while the paper-conveying alllysupporting the inking roller from said, y

mder and ermitting-the inking roller to move later ywhen the plunger is depressed.

3.In a machine formaking the combination with the tab the pile of. paper of means to convey sheets of paper from t e table, a stamping block above the table, a plunger secured to the stamping block, a cylinder into which said plunger extends, a pressure cylinder, a 1pe connecting the pressure cylinder and p unger, the driving shaft,. a valve in said pipe andmeansactuated by the driving sha t to actuate said valve while the paper conveying means are inoperative, an 1nk1ng roller bepaper shells,

e for holding IlOzLtll the stamping block, and means pivothereunto set my hand, at Pauls boro, on this nlly supporting the inking roller from said 21st dziy of October, 1907. \lin(lcr and permitting the inking roller to JOHN CHEQNEY more laterally when the plunger is del k pressed, and a spring tending to move the inking-roller under the stamping block.

in testimony pf which invention, 1 have Witnesses:

' WILLIAM J. ADAMSON,

JOHN H Bigown. 

